Motor-boat.



y PATENTED DEG. 1o, 1907.y V.v M. SALU & J. RKONEN.

MOTOR BOAT. APPLIUATION FILED 111.11.25, 1907.

2 SHEETS-SHEET 1 UNITED STATES PATENT OFFICE.

VICTOR M. SALO AND JOHN RKONEN, OF CHICAGO, ILLINOIS.

T o all whom it 'may concern.'

Be it known that we, VICTOR M. SALO and JOHN RKONEN, subjects of the Emperor of Russia, residing at 135 .East Chicago avenue, in the city of Chicago, county of Cook, and State of Illinois, have invented. certain new and useful Improvements in Motor-Boats, of which the following is a specification.

The object of our invention is to increase the buoyancy and the speed of the boat.

The manner in which we accomplish our object is described in the following speciiications and illustrated in the accompanying drawings in which:

Figure l is a side elevation, Fig. 2 is an underneath plan view, Fig. 3 is a top plan view,

Fig. 4 is a stern end view and Fig. 5 is a stem y end view.

In the drawings A indicates the main body of the boat', A1 is the open interior of the boat and A2 the seats under which inclosures can be made for `carrying articles of necessity. The ends A3 of the boat are constructed as tanks adapted to hold liuids for fuel and for the purpose of increasing the buoyancy.

A" is the stern and A5 the bow of the boat.

Built into the body of the boat is a fin keel B constructed of thin metal. The bottom edge B1 of this keel tapers from a point under the bow of the boat downward to a horizontal line beneath the propeller and ends with a step B2 for the rudder post.

In the keel between the body A of the stern end of the boat and the bottom edge B1 is an oblong aperture B3 adapted to allow the free revolutions of the propeller E therein.

Extending from beneath the engine C in the forward part of the interior A1 of the boat is a propeller shaft tube B4. This tube eX- tends downwards and rearwards to the bearing On the rear end of the keel and in line with the bearing B5 is a bearing BG. In this tube and in these bearings is a shaft D and D1 coupled at D?.

Specification of Letters Patent.

Application tiled January 25. 1907. Serial No. 354.160.

Patented Dec. 10, 1907.

Supported on the part of the shaft D1 between the bearings B5 and B6 is a propeller E consisting of the sleeve E1 and blade Pivotally supported in the keel step B2 is a rudder post F extending vertically through the stern of the body of the boat, To this post the rudder F1 is affixed.

The diagrammatic view Fig. 4 shows the shape of the body of the boat the vertical lines b1 to b5 corresponding with the horizontal cross lines b1 to b5 in Fig. 2 and the vertical lines al to a4 in Fig. 5 corresponding with the cross lines 0,1 to a4 in Fig. 2.

In this boat any form` of motor and its connection with the propeller shaft may be used and any suitable form of coupling, bearing, and means of afliXing the propeller to the shaft and for operating the rudder may be used.

What we claim and desire to secure by Letters Patent is:

In a motor boat the combination consist ing of a metallic iin keel tapering from the bow to a point below the propeller and from thence parallel with the water line to the stern, saidkeel having a step to support the end of a rudder post, an opening to permit the rotation of the propeller therein, bearings to support the propeller shaft and a connecting shaft tube extending from one of said bearings diagonally upwards into the hull; a propeller shaft supported in said bearings parallel with the water line; a propeller afIiXed on said shaft within the said opening vicToR sALo. JoHN RUKoNEv.

Witnesses:

THOMAS J. MORGAN, JOHN J. BEILMAN. 

